Rebuilding a xud9 engine. What piston rings do you recommend?
Thank you!
Has anyone tried any other piston rings than oem ones? Not in my budget the oem ones. Also i see the compretion ratio for the xud9 is 21.8. What is that in bar/psi?
don't cost cut when bulding an engine it will only bite you in the arse in the long run
A ratio is ratio, doesn't have a unit
Ok. 26 bar on 2 pistons and 27 bar on the other two. Is is ok or change the piston rings?
compression @ 26bar sounds good to me
Again like Jammapic it's not XUD's specific experience, but I've always found a good quality aftermarket piston ring set is fine. On the petrol XU rebuilds I've carried out I've used Federal-Mogul rings which are readily available and typically much cheaper than OE.